Error AP101 occurs when launching Forza Motorsport 6: Apex

You get the following error code when you try to launch Forza Motorsport 6: Apex:

AP101

This means that your system CPU doesn't meet the requirements to run the game. Forza Motorsport 6: Apex requires a CPU with a minimum of four logical cores. This can either be four physical cores or two hyper-threaded physical cores.

Solution

To resolve this problem, upgrade your system's CPU or use a computer with a CPU that meets the minimum requirements and try downloading and launching the game again.